CircuitPython 6.0.1 released! @adafruit @circuitpython

This is CircuitPython 6.0.1, the second 6.0.x stable release. This release fixes regressions in BLE and FrequencyIn() that prevent these functions from operating properly. The release also includes a considerable speedup in JSON parsing.

Download from circuitpython.org

Downloads are available from circuitpython.org. The site makes it easy to select the correct file and language for your board. The downloads page is here. Downloads are no longer available from the GitHub release pages because of the large number of files for each release. (If you see the unstable release 6.0.0-rc.2 when you browse circuitpython.org, that release is older. Use this one.)

Installation

To install follow the instructions in our new Welcome to CircuitPython! guide. To install the latest libraries, see this page in that guide.

Try the latest version of the Mu editor for creating and editing your CircuitPython programs and for easy access to the CircuitPython serial connection (the REPL).

Port status

CircuitPython has a number of “ports” that are the core implementation for a variety of microcontroller families. Stability varies on a per-port basis. As of this release, atmel-samd, nrf, and stm for the F4 family are stable. cxd56, esp32s2, and stm for other chip families are being actively improved but may be missing functionality and have bugs. litex and mimxrt10xx are in an alpha state and will have bugs and missing functionality.

Fixes and improvements since 6.0.0

  • _bleio: Characteristic and Descriptormax_lengths can be zero. Better argument validation forstart_scan()andstart_advertising()`. #3861. Thanks @dhalbert.
  • frequencyio.FrequencyIn() caused a crash. #3867. Thanks @dhalbert.
  • json: Speed up parsing dramatically. #3728. Thanks @tannewt.

Breaking changes since 5.x

  • i2cslave is now i2cperipheral and the class in it is changed as well.
  • The stop kwarg has been removed from I2C.writeto(). If no stop is desired, then use writeto_then_readfrom.
  • The default speed of busio.I2C and board.I2C() is now 100khz, not 400khz as before. Use busio.I2C to set the speed explicitly.
  • _bleio.ConnectionError has been removed. Code will now raise the native ConnectionError instead.
  • Removed Mixer, RawSample, and WaveFile from audioio. They are now only available in audiocore. 5.x has them in both modules.

New boards since 5.3.1 (38 boards)

  • Adafruit BLM Badge
  • Adafruit Feather M4 CAN
  • Adafruit Matrix Portal M4
  • Adafruit Metro ESP32S2
  • Adafruit Metro M7 1011
  • Adafruit QT Py
  • Adafruit QT Py Haxpress
  • AloriumTech Evo M51
  • Atmel SAME54 Xplained
  • BDMicro Vina D51
  • BH Dynamics DynOSSAT-EDU-EPS
  • BH Dynamics DynOSSAT-EDU-OBC
  • BLE-SS Dev Board Multi Sensor
  • Electronic Cats Bastwifi
  • Espressif Saola 1 w/WROOM
  • Espressif Saola 1 w/WROVER
  • Fluff M0
  • HiiBot BlueFi
  • Ikigaisense Vita nRF52840
  • Loc Ber M4
  • MakerDiary M60 Keyboard
  • MakerDiary nRF52840 M.2 devkit
  • Makerdairy Pitaya Go
  • Muselab nano ESP32-S2
  • Nice Nano
  • Nordic PCA10100
  • OpenMV H7
  • Picoplanet
  • PyCubed MRAM
  • Raytac MDBT50Q-DB-40
  • STM32F746 Discovery
  • STM32F746 Nucleo
  • Seeeduino Wio Terminal
  • Simmel
  • Teensy 4.1
  • TinkeringTech ScountMakes
  • UnexpectedMaker FeatherS2
  • microDev microS2 (ESP32-S2)

Known issues

  • We are not aware of any show-stopper issues.
  • See https://github.com/adafruit/circuitpython/issues for other issues.

Thanks

Thank you to all who used, tested, and contributed to this bug fix release: @catequalsgood, @cls22, @d-c-d, @dhalbert, @jepler, @kevinjwalters, @ladyada, @tannewt. Join us on the Discord chat to collaborate.

Documentation

Documentation is available in readthedocs.io.

This release is based on MicroPython 1.9.4 @25ae98f. Support upstream MicroPython by purchasing a PyBoard (from Adafruit here) or sponsoring MicroPython on GitHub.

Translations

One important feature of CircuitPython is translated control and error messages. With the help of fellow open source project Weblate, we’re making it even easier to add or improve translations. Sign in with an existing account such as Github, Google or Facebook and start contributing through a simple web interface. No forks or pull requests needed!

Troubleshooting

Check out this guide for info on common problems with CircuitPython. If you are still having issues, then post to the Adafruit Support Forums and join Discord.

Assets

Builds are no longer stored as assets on this release page, because there are too many of them. Please see the Download from circuitpython.org section above.


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